28159078 has 8 divisors (see below), whose sum is σ = 42747768. Its totient is φ = 13909824.

The previous prime is 28159073. The next prime is 28159081. The reversal of 28159078 is 87095182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28159078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28159073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84651 + ... + 84982.

It is an arithmetic number, because the mean of its divisors is an integer number (5343471).

Almost surely, 2^28159078 is an apocalyptic number.

28159078 is a deficient number, since it is larger than the sum of its proper divisors (14588690).

28159078 is a wasteful number, since it uses less digits than its factorization.

28159078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169718.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 28159078 is about 5306.5127909014. The cubic root of 28159078 is about 304.2328764438.

The spelling of 28159078 in words is "twenty-eight million, one hundred fifty-nine thousand, seventy-eight".